| Rhododendron viscosum | |
|---|---|
| |
| Conservation status | |
 Least Concern (IUCN 3.1) | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Ericales |
| Family: | Ericaceae |
| Genus: | Rhododendron |
| Species: | R. viscosum |
| Binomial name | |
| Rhododendron viscosum (L.) Torr. | |
| Synonyms | |
| |
Rhododendron viscosum, the swamp azalea, clammy azalea or swamp honeysuckle, is a species of flowering plant in the heath family Ericaceae. This deciduous shrub, growing to 2.5 m (8.2 ft) tall and broad, is native to the eastern United States. It has rounded matt green leaves. In early summer it produces funnel-shaped white flowers flushed pink. The flowers have prominent stamens and are strongly fragrant.
In cultivation in the UK, Rhododendron viscosum has gained the Royal Horticultural Society's Award of Garden Merit. It is hardy down to −20 °C (−4 °F) but like most rhododendron species requires a sheltered position in dappled shade with acid soil that has been enriched with leaf mold.
References
- Good, K.; Elliott, A. (2023). "Rhododendron viscosum". IUCN Red List of Threatened Species. 2023: e.T206043887A227707998. doi:10.2305/IUCN.UK.2023-1.RLTS.T206043887A227707998.en. Retrieved 8 October 2024.
- NRCS. "Rhododendron viscosum". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 21 October 2015.
- ^ "RHS Plantfinder - Rhododendron viscosum". Retrieved 6 October 2018.
- "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 85. Retrieved 2 October 2018.
- Blanchan, Neltje (2005). Wild Flowers Worth Knowing. Project Gutenberg Literary Archive Foundation.
- "Rhododendron viscosum". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture.
| Taxon identifiers | |
|---|---|
| Rhododendron viscosum |
|
| Azalea viscosa | |